To link to the entire object, paste this link in email, IM or documentTo embed the entire object, paste this HTML in websiteTo link to this page, paste this link in email, IM or documentTo embed this page, paste this HTML in website

A cone beam-ct evaluation of the availability of bone for the placement of miniscrews

A CONE BEAM-CT EVALUATION OF THE AVAILABILITY
OF BONE FOR THE PLACEMENT OF MINISCREWS
by
Sharon Mia Kim
A Thesis Presented to the
FACULTY OF THE GRADUATE SCHOOL
UNIVERSITY OF SOUTHERN CALIFORNIA
In Partial Fulfillment of the
Requirements for the Degree
MASTER OF SCIENCE
(CRANIOFACIAL BIOLOGY)
May 2008
Copyright 2008 Sharon Mia Kim

Introduction: The purpose of this study was to determine the most coronally located interradicular sites for miniscrew placement, and to compare gender, ethnic and insertion site groups. Methods: CBCT images from 60 patients were rendered using InVivo DentalTM Software. A vertical measurement was recorded from the most coronal presence of 3 mm of interradicular space to a horizontal line connecting the CEJs of adjacent teeth at 18 sites. Results: No significant differences were found between the right and left sides of the mouth. Statistically significant differences (p < .0001) existed between sites, and upper vs. lower sites. Statistically significant differences between gender and ethnic groups existed between lower left bicuspids and lower right molars. Conclusion: Sufficient bone for placement of miniscrews through attached gingiva existed primarily between mandibular molars. Sites mesial to mandibular and maxillary molars had bone stock located further apically, which would make miniscrew placement through attached gingiva unlikely.

A CONE BEAM-CT EVALUATION OF THE AVAILABILITY
OF BONE FOR THE PLACEMENT OF MINISCREWS
by
Sharon Mia Kim
A Thesis Presented to the
FACULTY OF THE GRADUATE SCHOOL
UNIVERSITY OF SOUTHERN CALIFORNIA
In Partial Fulfillment of the
Requirements for the Degree
MASTER OF SCIENCE
(CRANIOFACIAL BIOLOGY)
May 2008
Copyright 2008 Sharon Mia Kim